java根据图片和文字生成自定义图片

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;

public class ChartGraphics {
private BufferedImage image;
private int imageWidth = 300;  //图片的宽度
private int imageHeight = 500; //图片的高度
//生成图片文件
@SuppressWarnings("restriction")
public void createImage(String fileLocation) {
BufferedOutputStream bos = null;
if(image != null){
try {
FileOutputStream fos = new FileOutputStream(fileLocation);
bos = new BufferedOutputStream(fos);

JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(bos);
encoder.encode(image);
bos.close();
} catch (Exception e) {
e.printStackTrace();
}finally{
if(bos!=null){//关闭输出流
try {
bos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}

public void graphicsGeneration(String name, String id, String classname, String imgurl) {
int H_title = 30;     //头部高度
int H_mainPic = 200;  //轮播广告高度
int H_tip = 60;  //上网提示框高度
int H_btn = 25;  //按钮栏的高度
int tip_2_top = (H_title+H_mainPic);
int btns_2_top = tip_2_top+H_tip+20;
int btn1_2_top = btns_2_top+10;
int btn2_2_top = btn1_2_top+H_btn;
int shops_2_top = btn2_2_top+H_btn+20;
int W_btn = 280;  //按钮栏的宽度

image = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_INT_RGB);
//设置图片的背景色
Graphics2D main = image.createGraphics();
main.setColor(Color.white);
main.fillRect(0, 0, imageWidth, imageHeight);

//***********************页面头部
Graphics title = image.createGraphics();
//设置区域颜色
title.setColor(new Color(143, 0, 0));
//填充区域并确定区域大小位置
title.fillRect(0, 0, imageWidth, H_title);
//设置字体颜色，先设置颜色，再填充内容
title.setColor(Color.white);
//设置字体
Font titleFont = new Font("宋体", Font.BOLD, 14);
title.setFont(titleFont);
title.drawString("my head", 100, (H_title)/2+5);

//***********************插入中间广告图
Graphics mainPic = image.getGraphics();
BufferedImage bimg = null;
try {
bimg = javax.imageio.ImageIO.read(new java.io.File(imgurl));
} catch (Exception e) {}

if(bimg!=null){
mainPic.drawImage(bimg, 0, H_title, imageWidth, H_mainPic, null);
mainPic.dispose();
}
//***********************设置下面的提示框

Graphics2D tip = image.createGraphics();
//设置区域颜色
tip.setColor(new Color(255, 120, 89));
//填充区域并确定区域大小位置
tip.fillRect(0, tip_2_top, imageWidth, H_tip);
//设置字体颜色，先设置颜色，再填充内容
tip.setColor(Color.white);
//设置字体
Font tipFont = new Font("宋体", Font.PLAIN, 14);
tip.setFont(tipFont);
tip.drawString("登录成功，本次认证时间1小时", 60, tip_2_top+(H_tip)/2-10);
tip.drawString("正在返回商家主页", 100, tip_2_top+(H_tip)/2+10);

//***********************设置下面的按钮块
//设置字体颜色，先设置颜色，再填充内容
tip.setColor(Color.black);
tip.drawString("您可以选择的操作：", 20, btns_2_top);
tip.drawString("下面的小图标：", 20, shops_2_top);
//***********************按钮
Font btnFont = new Font("宋体", Font.BOLD, 14);
Graphics2D btn1 = image.createGraphics();
btn1.setColor(new Color(41,192 , 50));//#29C65A
btn1.fillRect(10, btn1_2_top, W_btn, H_btn);
btn1.setColor(Color.BLACK);
btn1.drawRect(10, btn1_2_top, W_btn, H_btn);
//btn1 文本
btn1.setColor(Color.white);
btn1.setFont(btnFont);
btn1.drawString("单击我啊", 120, btn1_2_top+(H_btn/2)+5);

Graphics2D btn2 = image.createGraphics();
btn2.setColor(new Color(141,120 , 22));//#29C65A
btn2.fillRect(10, btn2_2_top, W_btn, H_btn);
btn2.setColor(Color.BLACK);
btn2.drawRect(10, btn2_2_top, W_btn, H_btn);
//btn2文本
btn2.setColor(Color.white);
btn2.setFont(btnFont);
btn2.drawString("单击我啊", 120, btn2_2_top+(H_btn/2)+5);

createImage("c:\\hehe.jpg");

}

public static void main(String[] args) {
ChartGraphics cg = new ChartGraphics();
try {
cg.graphicsGeneration("ewew", "1", "12", "E:\\work_folder\\picture\\big_pic\\1.jpg");
} catch (Exception e) {
e.printStackTrace();
}
}
}